Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/25-23 | 405/30-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.2 (741.7) | 29.57 (751) | 0.37 (9.3) 1.3% |
| Width inches (mm) | 12.4 (315) | 15.94 (405) | 3.54 (90) 28.6% |
| Circum. inches (mm) | 91.74 (2330.12) | 92.89 (2359.34) | 1.15 (29.22) 1.3% |
| Sidewall Height inches (mm) | 3.1 (78.75) | 4.78 (121.5) | 1.68 (42.75) 54.3% |
| Revolutions per mile (km) | 690.67 (429.16) | 682.12 (423.85) | -8.55 (-5.31) -1.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.25 mph (32.59 km/h) |
| 25 mph (40.23 km/h) | 25.31 mph (40.74 km/h) |
| 30 mph (48.28 km/h) | 30.38 mph (48.89 km/h) |
| 35 mph (56.33 km/h) | 35.44 mph (57.03 km/h) |
| 40 mph (64.37 km/h) | 40.5 mph (65.18 km/h) |
| 45 mph (72.42 km/h) | 45.56 mph (73.33 km/h) |
| 50 mph (80.47 km/h) | 50.63 mph (81.48 km/h) |
| 55 mph (88.51 km/h) | 55.69 mph (89.62 km/h) |
| 60 mph (96.56 km/h) | 60.75 mph (97.77 km/h) |
| 65 mph (104.61 km/h) | 65.82 mph (105.92 km/h) |
| 70 mph (112.65 km/h) | 70.88 mph (114.07 km/h) |
| 75 mph (120.7 km/h) | 75.94 mph (122.21 km/h) |
| 80 mph (128.75 km/h) | 81 mph (130.36 km/h) |
| 85 mph (136.79 km/h) | 86.07 mph (138.51 km/h) |
| 90 mph (144.84 km/h) | 91.13 mph (146.66 km/h) |
| 95 mph (152.89 km/h) | 96.19 mph (154.8 km/h) |
| 100 mph (160.93 km/h) | 101.25 mph (162.95 km/h) |
| 2.35 | 2.73 | 2.94 | 3.07 | 3.21 | 3.31 | 3.42 | 3.55 | 3.73 | 3.91 | 4.11 | 4.27 | 4.56 | 4.88 | 5.13 | 5.29 | 5.38 | 5.71 | 6.17 | 7.17 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1736 | 2017 | 2172 | 2268 | 2371 | 2445 | 2526 | 2622 | 2755 | 2888 | 3036 | 3154 | 3368 | 3605 | 3789 | 3908 | 3974 | 4218 | 4558 | 5296 |
Better Fuel Economy Factory Ratios Increased Power
